US2021204548A1PendingUtilityA1

Stabilized Biocide Composition

48
Assignee: THOR GMBHPriority: Apr 4, 2017Filed: Mar 28, 2018Published: Jul 8, 2021
Est. expiryApr 4, 2037(~10.7 yrs left)· nominal 20-yr term from priority
Inventors:Stefan ApenbergRüdiger Baum
A01N 43/80A01N 25/22
48
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Claims

Abstract

The present invention relates to stabilized compositions, or compositions that are stable when stored, comprising: (A) 2.5 to 15% by weight of the isothiazolinone 2-methyl-2H-isothiazolin-3-one and 1,2-benzisothiazolin-one and/or its sodium and/or potassium salt, (B) 0.5 to 50 ppm by weight of copper(II) ions, in relation to the weight fraction of component (A), (C) 100 to 2,500 ppm by weight, in relation to the total composition, of at least one oxidizing agent selected from the group consisting of sodium iodate, potassium iodate, sodium bromate and potassium bromate, or mixtures of these and (D) water. The invention further relates to a process for the preservation of technical materials by means of the aforementioned compositions, as well as the technical materials treated therewith.

Claims

exact text as granted — not AI-modified
1 . Composition containing:
 (A) 2.5 to 15% of isothiazolinones 2-methyl-2H-isothiazolin-3-one and 1,2-benzisothiazolin-one by weight and/or their sodium and/or potassium salt,   (B) 0.5 to 50 ppm by weight of copper(II) ions, in relation to the proportion by weight of the component (A),   (C) 100 to 2,500 ppm by weight, in relation to the total composition, of at least one oxidizing agent selected from the group consisting of sodium iodate, potassium iodate, sodium bromate and potassium bromate or mixtures thereof, and   (D) water.   
     
     
         2 . Composition according to  claim 1 , characterized in that the composition further contains:
 (E) 0 to 10 ppm by weight Ca 2+  ions, in relation to the total composition.   
     
     
         3 . Composition according to  claim 1 , characterized in that the composition further contains:
 (E) 10 to 500 ppm by weight of at least one complexing agent, in relation to the total composition   
     
     
         4 . Composition according to  claim 1 ,
 characterized in that the weight ratio of the isothiazolinones 2-methyl-2H-isothiazolin-3-one and 1,2-benzisothiazolin-one is between 3:1 and 1:3.   
     
     
         5 . Composition according to  claim 1 ,
 characterized in that the composition contains only 2-methyl-2H-isothiazolin-3-one and 1,2-benzisothiazolin-one as isothiazolinones.   
     
     
         6 . Composition according to  claim 1 , characterized in that it contains a weight fraction of organic solvents of 0 to 3% by weight. 
     
     
         7 . Composition according to  claim 1 , characterized in that it contains a weight fraction of NaCl in the range of 0 to 2.8% by weight. 
     
     
         8 . Composition according to  claim 1 , characterized in that it exhibits a pH value in the range of 8 to 11. 
     
     
         9 . Composition according to  claim 1 , characterized in that the content of sodium iodate and/or potassium iodate is in the range of 100 to 500 ppm and the content of sodium bromate and/or potassium bromate is in the range of 100 to 2,000 ppm. 
     
     
         10 . Use of the composition according to  claim 1  for the protection of industrial materials against attack by and non-therapeutic control of microorganisms. 
     
     
         11 . Process for the protection of industrial materials against attack and/or destruction by microorganisms, characterized in that a composition according to  claim 1  is allowed to act on the microorganism or its habitat. 
     
     
         12 . Technical materials obtainable by treating technical materials with the composition according to  claim 1 .

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